Miley Cyrus kept the rumor mill churning on Wednesday night when she made the
rounds in Los Angeles without her engagement ring, TMZ.com reported.

The
Party in the U.S.A. singer denied stories that she has called off her engagement to
Liam Hemsworth, but sources close to Cyrus told
Us Weekly that the couple have been going through a rough patch.

“I am so sick of L.A. and sick of the lies that come with it,” the 20-year-old tweeted. “I didn’t
call off my wedding.”

Tales of unrest began to emerge last month after Hemsworth was seen leaving a pre-Oscar party
with
Mad Men beauty
January Jones. A source told
Star magazine that Hemsworth, 23, and Jones, 35, had “hot chemistry” and the two “were all
over each other — and they even kissed.”